It's Sahila's birthday and she is having a party. How could you answer these questions using a picture, with things, with numbers or symbols?

How will you work out which numbers have been used to create this multiplication square?

Find a great variety of ways of asking questions which make 8.

How would you find out how many football cards Catrina has collected?

Follow the clues to find the mystery number.

Yasmin and Zach have some bears to share. Which numbers of bears can they share so that there are none left over?

Can you work out how to make each side of this balance equally balanced? You can put more than one weight on a hook.

If you count from 1 to 20 and clap more loudly on the numbers in the two times table, as well as saying those numbers loudly, which numbers will be loud?

Ben and his mum are planting garlic. Can you find out how many cloves of garlic they might have had?

Help share out the biscuits the children have made.

This activity is best done with a whole class or in a large group. Can you match the cards? What happens when you add pairs of the numbers together?

These spinners will give you the tens and unit digits of a number. Can you choose sets of numbers to collect so that you spin six numbers belonging to your sets in as few spins as possible?

"Ip dip sky blue! Who's 'it'? It's you!" Where would you position yourself so that you are 'it' if there are two players? Three players ...?

This investigates one particular property of number by looking closely at an example of adding two odd numbers together.

This activity focuses on doubling multiples of five.

Throw the dice and decide whether to double or halve the number. Will you be the first to reach the target?

Are these statements relating to odd and even numbers always true, sometimes true or never true?

Choose a symbol to put into the number sentence.

On Friday the magic plant was only 2 centimetres tall. Every day it doubled its height. How tall was it on Monday?

Four bags contain a large number of 1s, 3s, 5s and 7s. Can you pick any ten numbers from the bags so that their total is 37?

Choose four of the numbers from 1 to 9 to put in the squares so that the differences between joined squares are odd.

This problem challenges you to find out how many odd numbers there are between pairs of numbers. Can you find a pair of numbers that has four odds between them?

Can you work out how many flowers there will be on the Amazing Splitting Plant after it has been growing for six weeks?

At the beginning of May, Tom put his tomato plant outside. On the same day he sowed a bean in another pot. When will the two be the same height?

Frances and Rishi were given a bag of lollies. They shared them out evenly and had one left over. How many lollies could there have been in the bag?

If there are 3 squares in the ring, can you place three different numbers in them so that their differences are odd? Try with different numbers of squares around the ring. What do you notice?

This problem looks at how one example of your choice can show something about the general structure of multiplication.